Volume Viewer Vertebral Volume Measurement in Thoracolumbar Fracture with Intra vertebral Bone Grafting
Objective To explore the effect of volume viewer vertebral volume measurement in thoracolumbar fracture with intravertebral bone grafting.Methods The clinical data of patients with single-segment thoracolumbar fractures admitted to our hospital from January 2015 to December 2021 were retrospectively collected.The preoperative CT scan data of the fractured ver-tebrae of the patients were analyzed using Volume viewer,a post-processing workstation with AW Siever 3.2,to accurately calculate the preoperative vertebral volume of the fractured verte-brae.Patients with<50%volume loss of the injured vertebrae were categorized as the low loss group,and those with ≥50%volume loss of the injured vertebrae were categorized as the high loss group,The postoperative height changes of the fractured vertebrae and the occurrence of re-compression were compared between the two groups.Results A total of 70 patients were includ-ed,including 37 in the low-loss group and 33 in the high-loss group.The preoperative volume of the fractured vertebra and the height of the anterior margin of the vertebral body were significantly lower in the patients in the high-loss group than in the low-loss group(P<0.05).The recovery of vertebral anterior margin height in the immediate postoperative period and at the last follow-up was lower in the high-loss group than in the low-loss group(P<0.05).The incidence of postoperative re-compression in the high-loss group was higher than that in the low-loss group(48.5%vs 10.8%,P<0.05).The incidence of postoperative re-compression was higher in patients with bone graft in the low loss group than in patients without bone graft(25.0%vs 9.1%,P=0.380);and the inci-dence of postoperative re-compression in patients with bone graft was lower than that in patients without bone graft in the high loss group(30.0%vs 56.5%,P=0.260),but none of the differ-ences were statistically significant.Conclusion The incidence of postoperative re-compression in patients with single-segment thoracolumbar fracture can be high when the preoperative loss of vertebral body volume is ≥50%.Bone grafting of the fractured vertebral body might have the po-tential to reduce the incidence of postoperative re-compression.